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  1. Crystal - Wikipedia

    The scientific definition of a "crystal" is based on the microscopic arrangement of atoms inside it, called the crystal structure. A crystal is a solid where the atoms form a periodic arrangement. (Quasicrystals …

  2. Crystal | Definition, Types, Structure, & Facts | Britannica

    4 days ago · Crystal, any solid material in which the component atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Crystals are classified in general …

  3. What Is a Crystal? Definition and Examples

    Mar 28, 2020 · A crystal is a solid material in which atoms, ions, or molecules are arranged in a highly ordered and repeating three-dimensional pattern, known as a crystal lattice.

  4. CRYSTAL Definition & Meaning - Merriam-Webster

    The meaning of CRYSTAL is quartz that is transparent or nearly so and that is either colorless or only slightly tinged. How to use crystal in a sentence.

  5. Florida mom of three killed by husband over NFL game 'died a hero'

    Jan 10, 2026 · Florida mom of three killed by husband over NFL game 'died a hero' One of Crystal Roure's last acts alive was to tell her 12-year-old son to get out of the house and call 911. Her family …

  6. What is a Crystal? - International Gem Society - IGS

    Dec 19, 2024 · For gemologists and mineralogists, the scientific definition of a crystal goes right to the atomic level. A crystal is a solid whose atoms are arranged in a "highly ordered" repeating pattern.

  7. CRYSTAL | definition in the Cambridge English Dictionary

    CRYSTAL meaning: 1. transparent glass of very high quality, usually with its surface cut into delicate patterns: 2…. Learn more.

  8. What Is a Crystal Made Of? From Structure to Building Blocks

    Jan 8, 2026 · A crystal is a solid material where the constituent particles are arranged in a highly ordered, three-dimensional pattern that repeats throughout the entire structure. This internal …

  9. All Crystals - The Crystal Council

    Read in-depth descriptions, planets, zodiacs, healing properties and more with each crystal. Detailed crystal properties.

  10. Crystal Encyclopedia: The Ultimate Crystal Guide - Crystal Vaults

    The Crystal Encyclopedia is the definitive guide to crystals, stones, and minerals. Find everything you've ever wanted to know about crystals!